FORA (4-dimensional Variational Ocean ReAnalysis dataset)

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Research Results

List for domestic meetings are only on Japanese site.

Usui, N., N. Hirose, K. Sakamoto, H. Asai, S. Nishikawa, H. Igarashi, Y. Kawakami, K. Aoki, H. Nakano, Y. Ishikawa, 2026: Four-dimensional variational ocean reanalysis for the seas around Japan over 60 years (FORA-JPN60): Part I – system configuration and basic performance. J. Oceanogr., doi;10.1007/s10872-026-00795-x

“The MOVE-JPN regional ocean operational forecasting system”
Hirose, N. 4-Dimensional Virtual Earth for Ocean Studies and Applications (Yokohama, Japan; Nov 20, 2023)
“JMA operational ocean prediction system - MOVE/MRI.COM”
Yamanaka, G., Y. Fujii, N. Usui, and N. Hirose
8th Annual Meeting of OceanPredict Science Team
“Impacts of Four-Dimensional Variational (4DVAR) Method on Ocean Reanalysis Systems in JMA”
Fujii et al., Ocean Reanalyses Workshop of the Copernicus Marine Service (Toulouse France; Oct 11, 2023)

“Four-dimensional Ocean ReAnalysis for the seas around Japan over 60 years (FORA-JPN60)”
Usui et al., Mid-latitude Atmosphere-Ocean-Ecosystem Interactions: Processes, Predictability, and Habitability (Fukuoka, Japan; July 17, 2025)
“Four-dimensional Ocean ReAnalysis for the seas around Japan over 60 years (FORA-JPN60)”
Usui et al., OceanPredict'24 (Paris, France; Nov. 20, 2024)
“Four-dimensional variational Ocean ReAnalysis for the seas around Japan over 60 years (FORA-JPN60): (I) Overview of the reanalysis experiment”
Usui et al., 6th WCRP International Conference on Reanalysis (Tokyo, Japan; Oct 29, 2024)
“Four-dimensional variational Ocean ReAnalysis for the seas around Japan over 60 years (FORA-JPN60): (II) Assessment of the reanalysis”
Hirose et al., 6th WCRP International Conference on Reanalysis (Tokyo, Japan; Oct 29, 2024)
“Introduction of Ocean Reanalyses of Japan Meteorological Agency (JMA)”
Fujii et al., Ocean Reanalyses Workshop of the Copernicus Marine Service (Toulouse France; Oct 10, 2023)